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Single Row Deep Groove Ball Bearings 634 J (OLD# R 4)

Single Row Deep Groove Ball Bearings 634 J (OLD# R 4)

The 634 J is a compact single row deep groove ball bearing, measuring 4mm in bore and 16mm in outer diameter. Made from chrome steel, it offers reliable performance for radial loads up to 256 lbf.

Its open design allows for easy lubrication and maintenance, while the chrome steel cage ensures durability. The bearing can handle speeds up to 36,000 RPM, making it suitable for high-speed applications.

With a temperature range of -30°C to 120°C, it works well in various environments. The lightweight design, at just 5.24g, makes it easy to handle and install.

Ideal for small machinery or electric motors where space is limited but performance is key. Compliant with RoHS and REACH standards, it’s a safe and reliable choice.

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Product Parameters

  • Part Number 634 J (OLD# R 4)
  • Brand TFL
  • Interchangeable SKF
  • System of Measurement Metric
  • For Load Direction Radial
  • Construction Single Row
  • Bearing Type Ball
  • Seal Type Open
  • Tolerance Class ABEC 1 | ISO P0
  • Radial Clearance Trade No CN
  • Bore Dia 4 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 16 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 5 mm
  • Width Tolerance -0.12mm to 0
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Chrome Steel
  • ROHS Compliant
  • REACH Compliant
  • Temperature Range -30°to 120 °C
  • Dynamic Radial Load 256 lbf
  • Static Radial Load 94 lbf
  • Max Speed 36000 rpm
  • Weight 5.24 g

Features

Performance Features of 634 J Bearing

634 J Bearing is built with chrome steel rings and balls, offering reliable radial load support.
Its compact size of 4 mm×16 mm×5 mm makes it suitable for space-constrained applications.

The open design allows for easy lubrication, ensuring smooth operation at high speeds.
With a maximum speed of 36,000 rpm, it delivers consistent performance in various conditions.

634 J Bearing operates efficiently within a temperature range of -30°C to 120°C.
Its ABEC 1 tolerance ensures dependable precision for general-purpose use.

Application

Industrial Uses of 634 J Bearing
This compact bearing is commonly used in small industrial motors and pumps, where its 4mm bore handles radial loads efficiently. The open design simplifies lubrication in tight spaces.

Where Is 634 J Bearing Used?
You’ll often spot 634 J Bearing in electric skateboards and drone motors, thanks to its lightweight 5.24g design. Its 36,000 rpm capability keeps things running smoothly at high speeds.

Perfect Fit for Automation: 634 J Bearing
In robotic joints and 3D printer extruders, 634 J Bearing’s 16mm OD fits neatly into compact mechanisms. The chrome steel construction withstands continuous movement without wearing out quickly.

Medical vs Industrial: Where 634 J Bearing Excels
While suitable for dental drill handpieces, 634 J Bearing really shines in textile machine spindles. Its -30° to 120°C range handles both climate-controlled labs and factory floor conditions.

Essential Roles of 634 J Bearing
For miniature gearboxes in camera lenses or watch mechanisms, 634 J Bearing’s 5mm width saves crucial space. The ABEC 1 tolerance provides reliable performance for precision applications.

Q&A

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